Let me clarify few things to you in here, if you think only this TAPI will save your future and Russia will certainly help you guys than you are delusional. I am waiting to hear that Russia has finally signed a deal of S-400 batteries with India which I highly doubt. You want to play both sides just like Pakistan did in 80's, you guys are good cheaters but not a good learners. You think you will bend down too much towards US and west and will benefit from both sides? No way, if you singed a deal with Russia, you will certainly lose US and all that promises of investment. And if you bend down towards US and ignore Russia than that will be the end of the India-Russian relationship.
You guys always forget one thing that USSR was once India's allay and this allay helped USSR a lot in sabotaging US plans in central Asia and south West Asia. And your intelligence agency knows too much about Russian secrets being an allay. So here we go you can figure it out yourself that how much you guys are important for Russia, if you tried to move an inch towards west, you than have to remember one thing, the USSR that helped you against Pakistan in 1971 war will and can certainly help your enemies in future too.
This is the main issue that is preventing you guys from being a made in India. You do not trust Russian technology and you want to move towards West, but you face too much resistance from Russia when you do. Hence you are stuck in a middle. As we say in Urdu and Hindi, Dhobi ka kuta na ghar ka na ghat ka.